Soybean oil

About: Soybean oil is a research topic. Over the lifetime, 11154 publications have been published within this topic receiving 234952 citations. The topic is also known as: soya oil & soy bean oil.

Characterization of vegetable oils by electrospray ionization mass spectrometry fingerprinting: classification, quality, adulteration, and aging.

Abstract: An improved approach for the direct infusion electrospray ionization mass spectrometry (ESI-MS) analysis of vegetable oils is described. The more polar components of the oils, including the fatty acids, are simply extracted with methanol/water (1:1) solution and analyzed by direct infusion ESI-MS in both the negative and positive ion modes. This fingerprinting analysis was applied to genuine samples of olive, soybean, corn, canola, sunflower, and cottonseed oil, to admixtures of these oils, and samples of aged soybean oil. ESI-MS fingerprints in the positive ion mode of the extracts divide the oils into well-defined groups, as confirmed by principal component analysis, whereas ESI-MS fingerprints in the negative ion mode clearly differentiate olive oil from the five other refined oils. The method is also shown to detect aging and adulteration of vegetable oils.

High-purity fatty acid methyl ester production from canola, soybean, palm, and yellow grease lipids by means of a membrane reactor

Abstract: High-purity fatty acid methyl ester (FAME) was produced from different lipids, such as soybean oil, canola oil, a hydrogenated palm oil/palm oil blend, yellow grease, and brown grease, combined with methanol using a continuous membrane reactor. The membrane reactor combines reaction and separation in a single unit, provides continuous mixing of raw materials, and maintains a high molar ratio of methanol to lipid in the reaction loop while maintaining two phases during the reaction. It was demonstrated that the membrane reactor can be operated using a very broad range of feedstocks at highly similar operating conditions to produce FAME. The total glycerine and free glycerine contents of the FAME produced were below the ASTM D6751 standard after a single reaction step. Under essentially the same reaction conditions, a conventional batch reaction was not able to achieve the same degree of FAME purity. The effect of the fatty acid composition of the lipid feedstocks on the FAME purity was also shown. It was demonstrated that, due to the fatty acid composition, FAME from virgin soybean oil and virgin canola oil was produced in the membrane reactor within ASTM specifications even without a water washing step.

Utilization of metal complexes as catalysts in the transesterification of Brazilian vegetable oils with different alcohols

Abstract: This article reports the use of Sn(3-hydroxy-2-methyl-4-pyrone) 2 (H 2 O) 2 ( 1 ), Pb(3-hydroxy-2-methyl-4-pyrone) 2 (H 2 O) 2 ( 2 ), and Zn(3-hydroxy-2-methyl-4-pyrone) 2 (H 2 O) 2 ( 3 ) as catalysts in the transesterification reaction of different alkyl-chain triglycerides and alcohols. The methanolysis of native oils from Brazilian’s Savannah and Amazonian regions, such as Andiroba ( Carapa guianensis ), Babassu ( Orbignia sp. ), Cumaru ( Dipteryx odorata ), Palm tree ( Elaeis sp. ), Piqui ( Caryocar sp. ), and Soybean oil as well as the alcoholysis of Soybean oil with several alcohols (ethanol, propanol, iso -propanol, n -butanol, terc -butanol and cyclo -hexanol) was studied. Activities of the tin and lead pyrone complexes were observed in all the alcohol studies. For linear alcohols, the reaction activities decrease with increasing carbonic chain length. It was also shown that the catalytic activities are higher when vegetable oil with short chain fatty acids or with a high unsaturated degree and short and linear chain alcohols are used.